^^^^ That is correct.
Page 11 of the User's Guide:
VEHICLE SECURITY ALARM
• Lock the door using either the power door lock switch (one door must be open) or the LOCK button on the Remote Keyless Entry (RKE) transmitter (doors can be open or closed), and close all doors.
The Vehicle Security Alarm will not arm if you lock the doors with the manual door lock plungers. The Vehicle Security Light in the instrument cluster will flash for 16 seconds. This shows that the Vehicle Security Alarm is arming. During this period, if a door is opened, the ignition is cycled to ON/RUN, or the power door locks are unlocked in any manner, the Vehicle Security Alarm will automatically disarm.
Once armed, the Vehicle Security Alarm disables the unlock switch on the driver door trim panel and passenger door trim panel.